Impairments in the Visual Processing of Global Biological Motion Cues in Down Syndrome

© 2017 The Author(s). Down syndrome (DS) is one of the most common chromosomal disorders and is often associated with a number of motor and cognitive impairments. Little research has been dedicated to investigating the perceptual abilities of individuals with DS. The visual processing of biologi...

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Main Authors: Riddell, Hugh, Tolentino-Castro, J.W., Wagner, H., Lappe, M.
Format: Journal Article
Language:English
Published: 2017
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/80927
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author Riddell, Hugh
Tolentino-Castro, J.W.
Wagner, H.
Lappe, M.
author_facet Riddell, Hugh
Tolentino-Castro, J.W.
Wagner, H.
Lappe, M.
author_sort Riddell, Hugh
building Curtin Institutional Repository
collection Online Access
description © 2017 The Author(s). Down syndrome (DS) is one of the most common chromosomal disorders and is often associated with a number of motor and cognitive impairments. Little research has been dedicated to investigating the perceptual abilities of individuals with DS. The visual processing of biological motion has been shown to be impaired in DS. It has been proposed that these impairments may stem from an inability to process the global patterns of full-body motion produced by a moving actor; however, this has not been explicitly investigated. We tested groups of participants with and without DS on a task requiring the visual discrimination of point-light walkers from spatially scrambled versions of point-light walkers. Participants with DS demonstrated poorer performance and slower reaction times on the task than healthy controls. From these results, we conclude that biological motion processing is impaired in DS and that this deficit is related to an inability to integrate global configural cues. In a second experiment, individuals with DS were able to discriminate the direction in which laterally translating walkers moved, suggesting that the global motion processing deficit observed in Experiment 1 is specific to biological motion recognition and does not generalise to other types of global motion.
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spelling curtin-20.500.11937-809272021-01-06T05:52:30Z Impairments in the Visual Processing of Global Biological Motion Cues in Down Syndrome Riddell, Hugh Tolentino-Castro, J.W. Wagner, H. Lappe, M. Down syndrome biological motion disorders global motion motion Adolescent Adult Cues Down Syndrome Female Humans Male Motion Perception Pattern Recognition, Visual Space Perception Young Adult © 2017 The Author(s). Down syndrome (DS) is one of the most common chromosomal disorders and is often associated with a number of motor and cognitive impairments. Little research has been dedicated to investigating the perceptual abilities of individuals with DS. The visual processing of biological motion has been shown to be impaired in DS. It has been proposed that these impairments may stem from an inability to process the global patterns of full-body motion produced by a moving actor; however, this has not been explicitly investigated. We tested groups of participants with and without DS on a task requiring the visual discrimination of point-light walkers from spatially scrambled versions of point-light walkers. Participants with DS demonstrated poorer performance and slower reaction times on the task than healthy controls. From these results, we conclude that biological motion processing is impaired in DS and that this deficit is related to an inability to integrate global configural cues. In a second experiment, individuals with DS were able to discriminate the direction in which laterally translating walkers moved, suggesting that the global motion processing deficit observed in Experiment 1 is specific to biological motion recognition and does not generalise to other types of global motion. 2017 Journal Article http://hdl.handle.net/20.500.11937/80927 10.1177/0301006617718716 eng restricted
spellingShingle Down syndrome
biological motion
disorders
global motion
motion
Adolescent
Adult
Cues
Down Syndrome
Female
Humans
Male
Motion Perception
Pattern Recognition, Visual
Space Perception
Young Adult
Riddell, Hugh
Tolentino-Castro, J.W.
Wagner, H.
Lappe, M.
Impairments in the Visual Processing of Global Biological Motion Cues in Down Syndrome
title Impairments in the Visual Processing of Global Biological Motion Cues in Down Syndrome
title_full Impairments in the Visual Processing of Global Biological Motion Cues in Down Syndrome
title_fullStr Impairments in the Visual Processing of Global Biological Motion Cues in Down Syndrome
title_full_unstemmed Impairments in the Visual Processing of Global Biological Motion Cues in Down Syndrome
title_short Impairments in the Visual Processing of Global Biological Motion Cues in Down Syndrome
title_sort impairments in the visual processing of global biological motion cues in down syndrome
topic Down syndrome
biological motion
disorders
global motion
motion
Adolescent
Adult
Cues
Down Syndrome
Female
Humans
Male
Motion Perception
Pattern Recognition, Visual
Space Perception
Young Adult
url http://hdl.handle.net/20.500.11937/80927